CVE-2024-50043

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix possible badness in FREE_STATEID When multiple FREE_STATEIDs are sent for the same delegation stateid, it can lead to a possible either use-after-free or counter refcount underflow errors. In nfsd4_free_stateid() under the client lock we find a delegation stateid, however the code drops the lock before calling nfs4_put_stid(), that allows another FREE_STATE to find the stateid again. The first one will proceed to then free the stateid which leads to either use-after-free or decrementing already zeroed counter.

The following products are affected by CVE-2024-50043 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2024-50043.

URL	Resource
https://git.kernel.org/stable/c/7ca9e472ce5c67daa3188a348ece8c02a0765039
https://git.kernel.org/stable/c/c88c150a467fcb670a1608e2272beeee3e86df6e
https://lore.kernel.org/linux-cve-announce/2024102133-CVE-2024-50043-86f8@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-50043
https://www.cve.org/CVERecord?id=CVE-2024-50043